I do wonder if there should be a separate thread in the subforum for this.
There are certainly season card holders that won’t make games and some of those would be very happy to get £15/20 or whatever for their seat for the day.
I notice that a seat near me tomorrow would cost you £41, so £20 would seem a good deal for both parties, maybe the difference between someone going or not.
I’ll be there so mine isn’t for sale but I’m sure there are others out there can’t make it.